Previous patch was broken, fix it.

This change is required when the display and the tracking
is done separately.

ViSP checks is UNIX CPP symbol is defined to switch between deprecated
macro implementations. Unfortunately, it does not seem extremely
reliable and sometimes the wrong implementation is chosen. Fix this
bug.

	* visp/distinfo: Regenerate.
	* visp/patches/patch-d: New.

This release has been built from ViSP subversion repository.
The main interest of this update is the model based tracker integration.

Please do *NOT* merge this package in robotpkg main repository.

	* visp/DESCR: New.
	* visp/Makefile: New.
	* visp/PLIST: New.
	* visp/depend.mk: New.
	* visp/distinfo: New.
	* visp/patches/patch-a: New.
	* visp/patches/patch-b: New.

Thanks for the initial submission.

- fix typo in configuration flags
- add ``-DCMAKE_SKIP_RPATH=ON'' to configuration flags to fix shared
  library compilation.

This package requires more works regarding:
- making optional dependencies configurable through robotpkg.conf
- checking for system dependencies properly
- currently install a static library only, shared libraries
  installation is not working and a patch should be done to fix this
  (still to be done). Issue reported to upstream.